Multiple security issues have been found in Iceweasel, Debian"s version of the Mozilla Firefox web browser: Multiple memory safety errors, use-after-frees, too-verbose error messages and missing permission checks may lead to the execution of arbitrary code, the bypass of security checks or information disclosure. This update also addresses security issues in the bundled version of the NSS crypto library. This update updates Iceweasel to the ESR24 series of Firefox.